/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Microsoft YaHei', sans-serif;
}

:root {
  --primary-color: #1a5f7a;
  --secondary-color: #3d8c9f;
  --accent-color: #f8b500;
  --light-color: #f5f5f5;
  --dark-color: #333;
}

body {
  background-color: #f9f9f9;
  color: var(--dark-color);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: 15px 0;
  }
  
  .nav-links {
    margin-top: 15px;
  }
  
  .nav-links li {
    margin: 0 10px;
  }
  
  .carousel-container {
    height: 300px;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}